Methyl 2,6-dimethoxy-4-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 3,4-dichloro-2-(trifluoromethoxy)pyridine-5-carboxylate
2,3-Dibromo-6-nitro-5-(trifluoromethoxy)pyridine
Methyl 2,5-dimethoxy-4-(trifluoromethoxy)pyridine-3-carboxylate
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